In 100 Years Quest Chapter 61 Giant Gajeel Lifts part of Aldoron's Body
Credit to DemonGodMitchAubin's calc for the pixel scaling.
We will use the density of the strongest wood for Aldoron, which is 1260 Kg/Meters^3, since he's basically a giant tough wooden monster.
Aldoron Arm Width = 17601.67 Meters = 49.5 px
17601.67 Meters/49.5 px = 355.589 Meters per px
HEAD (1)
The shape of his head is a rectangular prism
Height of head = 43.05 px = 15308.106 Meters
Width of head = 25.55 px = 9085.299 Meters
Length of head = 43.05 px = 15308.106 Meters
Volume = 2.1290318e+12 Meters^3
Density = 1260 Kg/Meters^3
Mass = Volume*Density
Mass = 2.6825801e+15 Kg
NECK (2)
The shape of his neck is a truncated cone
Height of neck = 87.86 px = 31242.05 Meters
Lower radius of neck = 73.76/2 = 36.88 px = 13114.122 Meters
Higher radius of neck = 23.6/2 = 11.8 px = 4195.95 Meters
Volume = 8.0028854e+12 Meters^3
Density = 1260 Kg/Meters^3
Mass = Volume*Density
Mass = 1.0083636e+16 Kg
Total Mass: 2.6825801e+15 Kg + 1.0083636e+16 Kg = 1.2766216e+16 Kg
Aldoron isn't fully wood so I will assume that 25% of him is hollow
Total Lifted Mass: 1.2766216e+16 Kg * .75 = 9.5746618e+15 Kg (Class P)